Related Manuals for JUKI TL series
Summary of Contents for JUKI TL series
- Page 1 1-NEEDLE LOCKSTITCH SEWING MACHINE WITH AUTOMATIC THREAD TRIMMER FOR PROFESSIONAL TL series SERVICE MANUAL No.00 40175681...
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Page 2: Table Of Contents
CONTENTS [1] SPECIFICATIONS ................... 1 [2] NAMES OF COMPONENTS ................3 [3] DISASSEMBLY AND ASSEMBLY ..............3 [4] PRINTED CIRCUIT BOARD DIAGRAM (CONNECTOR LAYOUT) ..... 16 [5] ADJUSTMENTS OF COMPONENTS ............17 WARNING : To avoid the risk of fire, electric shock, injury to persons or damage to components, especially keep the following : •... -
Page 3: Specifications
[1] SPECIFICATIONS (1) Power switch ON•OFF 2-step changeover switch (common to lamp) located at the belt cover section of the right-hand side of main unit. (2) Drive control components Drive : Built-in motor timing belt method Control : Foot pedal controller method 50 to 1,500 sti/min Low speed rotation of 80 sti/min while needle up/down switch is ON (3) Table, stand and handle components Main unit : Portable type main unit with soft case (Case is folded in two and packed with main unit.) -
Page 4: Needle Up/Down Switch
(7) Special mechanism 1. Automatic thread trimming : Thread trimming switch is used in common for pushbutton type and for external foot pedal switch type. Switch fails to work even when pressing it within two seconds after the rotation of thread trimmer. 2. -
Page 5: Names Of Components
[2] NAMES OF COMPONENTS Thread guide No.1 Thread guide base Thread guide rod First tention Presser spring regulator Arm cover asm. Indicating needle of Bobbin winder shaft presser spring regulator Belt cover Face cover Handwheel Stitch dial Pressure indicating plate Needle up/down switch Thread take-up thread guide Speed limit vr knob... -
Page 6: Arm Cover Asm
❻ Convex of presser spring Outer Components regulator knob ❺ Slit of presser regulating screw 1. Arm cover asm. ❶ Arm cover setscrew SM5042005SN ❷ Bobbin ❹ MAIN circuit winder ❸ Arm cover board case cover connector Disassembly Assembly Point ○... -
Page 7: Bed Cover Mas. Asm
4. Bed cover mas. asm. ❶ Bed cover setscrew ❶ Bed cover setscrew SM5051255SN Disassembly Assembly Point ○ Remove six ❶ setscrews and re- ○ Attach bed cover and tighten set- move bed cover. screws. 5. MAIN circuit board asm. ❷... -
Page 8: Handwheel And Clutch
2. Handwheel and clutch Groove of handwheel Preparation ○ Remove belt cover. ❼ Convex of handwheel bushing ○ Remove arm cover. ❾ Motor pulley ❶ Handwheel setscrew ❻ Groove of handwheel bushing ❷ Handwheel ❺ Hook portion of clutch spring ❹... -
Page 9: Presser Bar
4. Presser bar ❷ Presser spring regulator Preparation Threader support plate setscrew (upper) ○ Remove arm cover asm. ❹ Presser spring SL5040631SE ○ Remove face plate mas. asm. ❼ Indicating needle of ○ Remove presser foot and setscrew. presser spring regulator Threader support plate mas. -
Page 10: Thread Take-Up
6. Thread take-up ❶ Thread take-up supporting shaft setscrew SM8050602TP Preparation ❻ Thread take-up ❸ Thread take-up ○ Remove arm cover asm. support supporting shaft ○ Remove face plate mas. asm. ❹ Needle bar crank ○ Remove presser bar. ○ Remove needle bar. ❺... -
Page 11: Stitch Dial
9. Stitch dial Preparation ❹ Feed regulating screw ○ Remove arm cover asm. ❺ Feed regulating screw • Stopper screw • Stopper nut ❷ Feed regulating ❸ Feed regulating screw stopper asm. setscrew ❶ Stitch dial setscrew SM8030402TP Disassembly Assembly Point ○... -
Page 12: Wire Holder
11. Wire holder ❷ Wire tube presser setscrew SM4040655SN Preparation ❶ Nut of setscrew ○ Remove outer components. (opposite side 9 mm) (Excluding belt cover and NS6620310SP motor cover) ○ Remove presser bar. ❸ Wire holder setscrew SM5040855SN ❺ Disk pressure release connecting link ❹... -
Page 13: Hook Driving Shaft Pulley
13. Hook driving shaft pulley Preparation ○ Remove outer components. (Excluding stop solenoid) ○ Loosen idler. ○ Remove needle. ❺ Hook driving shaft pulley eccentric shaft ❸ Hook driving shaft pulley E-ring (E-6) ❾ Thread trimmer cam screw No. 1 ❶... -
Page 14: Hand Lifter Lever
❶ Hand lifter lever 14. Hand lifter lever ❹ Hand lifter lever shaft set screw Flat part ❷ Hand lifter lever shaft ❸ M4 screw ⓐ Disassembly Assembly Point ○ Loosen hand lifter lever shaft setscrew ❹ . ○ Put hand lifter lever shaft ❷ into ○... -
Page 15: Looper Mas. Asm
❺ Looper mas. asm. Automatic Thread Trimming Components setscrew ❸ Looper link asm. SM5040855SN 1. Looper mas. asm. Preparation ○ Remove bed cover. ❹ Moving knife ❷ Looper link holding shaft ❶ Looper link B ❻ Looper ❼ Bobbin case arm spring (Washer A1731090000 E-ring E-3... -
Page 16: Moving Knife Base Mas. Asm
3. Moving knife base mas. asm. Preparation ○ Remove bed cover. ❸ Feed dog ○ Remove throat plate asm. ❷ Moving knife base mas. asm. setscrew ❶ Moving knife link SM4040855SP shaft A E-ring Disassembly Assembly Point ○ Remove ❶ E-ring and raise ○... - Page 17 [Adjusting the counter knife] 1) Properly installing the knife thread guide Install the knife thread guide ❶ so that the needle enters exactly the center of its opening. 2) Properly installing the counter knife 1. The standard distance from the blade point of the counter knife ❷ to the knife thread guide ❶ , which is posi- tioned so that the needle enters the center of its opening, is 0.5 mm.
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Page 18: Printed Circuit Board Diagram (Connector Layout)
[4] PRINTED CIRCUIT BOARD DIAGRAM (CONNECTOR LAYOUT) AC120V or AC220V-240V Plug socket VR for speed LED Lamp Thread trimmer limiting Power SW solenoid Controller Controller socket CN23 Thread trimmer MAIN FILTER CN11 CN22 SW circuit board circuit board circuit board CN21 Bobbin winder SW (AC 22V),... -
Page 19: Adjustments Of Components
(Caution) Convex portion of connectors, CN7, CN8 and CN9 should be placed up. Convex portion Connector insertion diagram (FILTER circuit board) CN22 〜 － 〜 － ZNR1 CN21 CN23 [5] ADJUSTMENT OF COMPONENTS Automatic thread trimmer mechanism General mechanism 1. Positioning of moving knife arm installing plate 1. -
Page 20: Height Of Needle Bar
General Mechanism 1. Height of needle bar bushing ○ Set dimension from top surface of throat plate to lower end face of needle bar bushing to 67.0 ±0.1mm. (bushing : driving fit) Lower end face of needle bar bushing 67.0 ± 0.1 mm Top surface of throat plate 2. -
Page 21: Height Of Feed Dog
4. Height of feed dog ○ Set stitch dial to 2 and bring feed dog to its high- Top surface of throat plate est position. ○ See the height on the rear side of feed dog. 1.2±0.1 mm ○ Bottom of tooth of feed dog should be aligned with top surface of throat plate. -
Page 22: Position Of Bobbin Case Positioning Finger
8. Position of bobbin case positioning finger ○ Loosen bobbin case positioning finger ❶ set- Needle screw. Top view ○ Make right-hand edge of convex portion of bobbin case positioning finger spring align with ❷ right- 0.3 to 0.5 mm hand edge of needle. -
Page 23: Adjustment Of Bobbin Thread Tension
11. Adjustment of bobbin thread tension How to adjust Bobbin case Adjust with adjusting screw so that bobbin thread Adjusting screw tension when spun thread #60 is used becomes 0.176±0.02N. Bobbin thread 12. Position of bobbin winder clutch ○ Remove belt cover. How to adjust 1. -
Page 24: Adjustment Of Bobbin Winder
13. Adjustment of bobbin winder [Position of disengaging bobbin winder] How to adjust 1. Set ❶ bobbin presser to the position where it is 16 mm away from ❷ bobbin winding shaft. 2. Tighten ❹ bobbin winder controller asm. with setscrew when concave portion of ❸ bobbin winding shaft base adjusting plate is engaged with convex portion of ❹... -
Page 25: Vertical Position Of Threader Hook
14. Position of threader support plate mas. asm. How to adjust ○ Open face cover and remove arm cover asm. 1. Temporarily tighten ❶ threader support plate mas. asm. with setscrews. 2. Adjust ❶ threader support plate mas. asm. so ❷... -
Page 26: Automatic Thread Trimmer Mechanism
Automatic Thread Trimmer Mechanism 1. Positioning of moving knife arm installing plate (Adjustment of position of moving knife) ○ Loosen ❶ nut of setscrew ❷ Moving knife arm ○ Loosen ❷ setscrews in installing plate and move installing plate setscrew installing plate to the right or left to obtain position ❶... - Page 27 3. Thread trimmer cam timing (Needle-to-cam position) ○ Loosen setscrews in ❶ thread trimmer auxiliary ❹ Thread trimmer auxiliary link cam, ❷ thread trimmer cam and ❸ roller holding ❶ Thread trimmer auxiliary cam cam. ○ Lower needle bar by 37˚ (1.95 mm) from its upper dead point.
- Page 28 3-5 Adjustment of eccentric shaft of thread trimmer solenoid link A ○ Fix ❶ thread trimmer solenoid link A with ❷ thread trimmer clutch plate collar, ❸ thread trimmer clutch plate collar setscrew, ❹ thread trimmer auxiliary link washer and ❺ thread trimmer auxiliary link stopper E-ring. ❺...
- Page 29 3-7 Confirmation of working and positioning of link arm fixing plate (Timing of thread trimmer auxiliary cam, thread trimmer cam and thread trimmer holding cam) ○ Set thread trimmer solenoid asm. to ON state, and make pin at top end of thread trimmer auxiliary link per- fectly align with ❶...
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Page 30: Position And Protruding Amount Of Looper
4. Position and protruding amount of looper (Left/right position and moving amount) 4-1. Adjustment of left/right position of looper ○ Adjust with looper mas. asm. ❷ so that center of inner hook is aligned with center of lopper ❶ . ❷... - Page 32 TOKYO, 206-8551, JAPAN PHONE : (81)42-357-2341 http://www.juki.com ＊ The description covered in this Service Manual is subject to change for im- Copyright © 2016 JUKI CORPORATION provement of the commodity without notice. • All rights reserved throughout the world. 000316...